Q. The __________ data structure value provides more granular information concerning the number of operations queued because of a lock.

View solution

Q. serverStatus includes all fields by default, except _________

View solution

Q. ______ field contains total number of current clients that connect to the database instance.

View solution

Q. MongoDB’s _______ is a database profiling system that can help identify inefficient queries and operations.

View solution

Q. With the _______ storage engine, MongoDB uses memory-mapped files to store data.

View solution

Q. Point out the correct statement.

View solution

Q. The memory usage statuses metrics of the _________ output can provide insight into MongoDB’s memory use.

View solution

Q. Point out the wrong statement.

View solution

Q. You can inspect __________ to check the amount of mapped memory that mongod is using.

View solution

Q. MongoDB reports its triggered page faults as the total number of page faults in ________ second.

View solution

Q. Which of the operator is used to access the query field of documents within system.profile?

View solution

Q. ____________ returns information on the query plan for aggregate function.

View solution

Q. By default, db.collection.explain() runs in ___________ verbosity mode.

View solution

Q. ____________ does not provide query execution information for the rejected plans.

View solution

Q. Which of the following provides information on the MongoDB instance?

View solution

Q. _________ corresponds to the millis field returned by cursor.explain() in earlier versions of MongoDB.

View solution

Q. For sharded collections, explain returns the __________ for each accessed shard.

View solution

Q. Point out the wrong statement.

View solution

Q. If the query planner selects a collection scan, the explain result includes a _________ stage.

View solution

Q. Which of the following parameter specifies the verbosity mode for the explain output?

View solution